Possible Origins of High-T sub c Superconductivity

Possible Origins of High-T sub c Superconductivity

A new mechanism is proposed to explain high-T sub c superconductivity in copper-oxide-based, open Perovskite-like systems. It is shown that, should the oxygen ions be moving in a double-well potential, an order-of-magnitude enhancement of the electron-lattice coupling follows automatically from a co...

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Veröffentlicht in:Physical review letters 1988-05, Vol.60 (21), p.2191-2193
Hauptverfasser: Hardy, J R, Flocken, J W
Format: Artikel
Sprache:eng
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Zusammenfassung:A new mechanism is proposed to explain high-T sub c superconductivity in copper-oxide-based, open Perovskite-like systems. It is shown that, should the oxygen ions be moving in a double-well potential, an order-of-magnitude enhancement of the electron-lattice coupling follows automatically from a consistent treatment of this motion. Both theoretical and experimental evidence for the presence of such double wells is cited. 14 ref.--AA
ISSN:0031-9007